Load Specifications
Bullet:.284 | 160gr | Barnes MRX BT
Bullet Manufacturer:Barnes
Bullet Weight:160 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:.284 Win. load data
Case Length (l3):2.17"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:66 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:12.0
Load data in caliber .284 Win. with .284 | 160gr | Barnes MRX BT bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 54,723 psi | 86% | 2572 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,840 psi | 89% | 2638 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,085 psi | 86% | 2661 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,144 psi | 88% | 2664 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,077 psi | 69% | 2572 fps | 97.9% |
| Accurate 4064 | <<locked>> | 90% | 56,971 psi | 89% | 2687 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,635 psi | 84% | 2736 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 57,508 psi | 90% | 2730 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,129 psi | 86% | 2684 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,040 psi | 82% | 2723 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,173 psi | 88% | 2674 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,609 psi | 90% | 2641 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 53,867 psi | 84% | 2799 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,288 psi | 87% | 2703 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,666 psi | 87% | 2723 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,868 psi | 86% | 2792 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,449 psi | 88% | 2825 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,024 psi | 80% | 2710 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,003 psi | 66% | 2602 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,782 psi | 58% | 2503 fps | 96.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,384 psi | 74% | 2769 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,653 psi | 90% | 2749 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 55,593 psi | 87% | 2713 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,666 psi | 87% | 2697 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,520 psi | 85% | 2612 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,927 psi | 88% | 2707 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,840 psi | 89% | 2736 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 96% | 56,565 psi | 89% | 2789 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 94% | 57,029 psi | 89% | 2753 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 84% | 54,346 psi | 85% | 2684 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,911 psi | 86% | 2717 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,346 psi | 85% | 2723 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,261 psi | 90% | 2835 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 56% | 1634 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,651 psi | 87% | 2687 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,810 psi | 86% | 2664 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,607 psi | 86% | 2667 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,172 psi | 85% | 2648 fps | 98.7% |
| IMR 4350 | <<locked>> | 98% | 56,289 psi | 88% | 2726 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,609 psi | 90% | 2726 fps | 99% |
| IMR 4831 | <<locked>> | 98% | 54,230 psi | 85% | 2730 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 57,116 psi | 90% | 2749 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,173 psi | 88% | 2674 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,305 psi | 90% | 2697 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,782 psi | 89% | 2657 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,418 psi | 85% | 2661 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,188 psi | 90% | 2720 fps | 99.7% |
| Lovex S070 | <<locked>> | 96% | 54,636 psi | 86% | 2707 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,463 psi | 57% | 2428 fps | 95.9% |
| Norma 201 | <<locked>> | 86% | 55,883 psi | 88% | 2671 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,855 psi | 89% | 2671 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,853 psi | 86% | 2710 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,000 psi | 89% | 2776 fps | 97.7% |
| Norma MRPᴾ | <<locked>> | 100% | 46,934 psi | 74% | 2723 fps | 97.6% |
| Norma URP | <<locked>> | 98% | 56,420 psi | 88% | 2776 fps | 100% |
| Ramshot Big Game | <<locked>> | 88% | 55,724 psi | 87% | 2740 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,201 psi | 87% | 2779 fps | 99.5% |
| Ramshot TAC | <<locked>> | 84% | 56,376 psi | 88% | 2703 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,304 psi | 88% | 2717 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,159 psi | 90% | 2680 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,158 psi | 57% | 1673 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,884 psi | 89% | 2717 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,420 psi | 88% | 2789 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,101 psi | 88% | 2822 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,493 psi | 90% | 2815 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,811 psi | 89% | 2848 fps | 100% |
| Rottweil R 901 | <<locked>> | 84% | 56,739 psi | 89% | 2644 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,565 psi | 89% | 2671 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,854 psi | 88% | 2710 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 53,998 psi | 85% | 2697 fps | 96.2% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,777 psi | 78% | 2694 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 94% | 55,666 psi | 87% | 2697 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,188 psi | 90% | 2720 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,305 psi | 90% | 2697 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,418 psi | 85% | 2661 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,636 psi | 86% | 2707 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,609 psi | 90% | 2769 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,998 psi | 86% | 2680 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,796 psi | 87% | 2700 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,566 psi | 90% | 2608 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,404 psi | 85% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,174 psi | 90% | 2674 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,298 psi | 77% | 2687 fps | 96.7% |
| Somchem S321 | <<locked>> | 82% | 57,479 psi | 90% | 2703 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,724 psi | 89% | 2602 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,592 psi | 86% | 2671 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,767 psi | 87% | 2703 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,679 psi | 86% | 2776 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,589 psi | 79% | 2674 fps | 97.7% |
| Vihtavuori N130 | <<locked>> | 82% | 56,985 psi | 89% | 2562 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 54,447 psi | 85% | 2546 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,420 psi | 88% | 2628 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,246 psi | 90% | 2648 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,566 psi | 90% | 2684 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,245 psi | 87% | 2723 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 56,753 psi | 89% | 2674 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,361 psi | 87% | 2648 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,273 psi | 85% | 2730 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,514 psi | 73% | 2671 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,376 psi | 87% | 2700 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,217 psi | 90% | 2723 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,956 psi | 89% | 2795 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,536 psi | 59% | 2628 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,869 psi | 88% | 2710 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 51,358 psi | 80% | 2530 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,729 psi | 69% | 2461 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,401 psi | 81% | 2612 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,076 psi | 68% | 2454 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 35,708 psi | 56% | 2411 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 41,423 psi | 65% | 2464 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,632 psi | 48% | 2306 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 47,529 psi | 74% | 2579 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,408 psi | 63% | 2441 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 96% | 45,803 psi | 72% | 2615 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,661 psi | 78% | 2582 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,430 psi | 79% | 2552 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,584 psi | 68% | 2625 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,118 psi | 63% | 2461 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,091 psi | 68% | 2523 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,067 psi | 49% | 2323 fps | 95.8% |
| Alliant Reloder-17 | 43.3 gr | 80% | 34,693 psi | 54% | 2444 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 96% | 44,773 psi | 70% | 2602 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,876 psi | 42% | 2238 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,606 psi | 54% | 2451 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,924 psi | 52% | 2461 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,862 psi | 73% | 2589 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 39,711 psi | 62% | 2464 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 40,509 psi | 63% | 2441 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,329 psi | 80% | 2566 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,820 psi | 77% | 2605 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,654 psi | 64% | 2474 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 84% | 37,898 psi | 59% | 2467 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 86% | 44,251 psi | 69% | 2546 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 47,993 psi | 75% | 2589 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,398 psi | 45% | 2228 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,092 psi | 69% | 2566 fps | 100% |
| Hodgdon Superformance | 49.2 gr | 86% | 39,871 psi | 62% | 2533 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,556 psi | 42% | 1457 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,876 psi | 72% | 2539 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 48,037 psi | 75% | 2572 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,467 psi | 67% | 2470 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,817 psi | 70% | 2493 fps | 97% |
| IMR 4350 | <<locked>> | 88% | 41,104 psi | 64% | 2474 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,711 psi | 62% | 2425 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 29,791 psi | 47% | 2270 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 44,193 psi | 69% | 2549 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 49,661 psi | 78% | 2582 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,731 psi | 73% | 2552 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,311 psi | 74% | 2516 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,395 psi | 66% | 2474 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,650 psi | 54% | 2323 fps | 95.5% |
| Lovex S070 | <<locked>> | 84% | 37,362 psi | 59% | 2402 fps | 95.2% |
| Lovex S071 | <<locked>> | 98% | 34,084 psi | 53% | 2379 fps | 95% |
| Norma 201 | <<locked>> | 80% | 46,340 psi | 73% | 2530 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,833 psi | 73% | 2530 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,438 psi | 67% | 2510 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 46,427 psi | 73% | 2612 fps | 95.5% |
| Norma MRP | <<locked>> | 94% | 38,247 psi | 60% | 2549 fps | 95% |
| Norma URP | <<locked>> | 80% | 31,009 psi | 49% | 2310 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 42,308 psi | 66% | 2530 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 34,722 psi | 54% | 2405 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 49,472 psi | 78% | 2595 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,211 psi | 77% | 2615 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,519 psi | 84% | 2631 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,992 psi | 42% | 1496 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,857 psi | 64% | 2454 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,818 psi | 72% | 2625 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,970 psi | 58% | 2503 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,530 psi | 48% | 2326 fps | 95.1% |
| ReloadSwiss RS 70 | 45.1 gr | 82% | 32,648 psi | 51% | 2385 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 50,183 psi | 79% | 2556 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,048 psi | 69% | 2484 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,362 psi | 59% | 2411 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 98% | 50,662 psi | 79% | 2648 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 96% | 43,642 psi | 68% | 2585 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 84% | 40,509 psi | 63% | 2441 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,650 psi | 54% | 2323 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,731 psi | 73% | 2552 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,395 psi | 66% | 2474 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 37,362 psi | 59% | 2402 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,522 psi | 60% | 2461 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,935 psi | 75% | 2575 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,876 psi | 72% | 2549 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,543 psi | 75% | 2474 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,711 psi | 62% | 2349 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,566 psi | 60% | 2369 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,221 psi | 68% | 2579 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 53,766 psi | 84% | 2657 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,253 psi | 74% | 2477 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,659 psi | 75% | 2569 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 38,247 psi | 60% | 2418 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 27,833 psi | 44% | 2267 fps | 97.8% |
| Somchem S385 | <<locked>> | 94% | 41,220 psi | 65% | 2513 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 53,577 psi | 84% | 2520 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,037 psi | 75% | 2464 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,801 psi | 69% | 2457 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,309 psi | 69% | 2467 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,289 psi | 57% | 2352 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 32,474 psi | 51% | 2316 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 80% | 49,705 psi | 78% | 2575 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,786 psi | 67% | 2464 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,937 psi | 50% | 2316 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 86% | 28,979 psi | 45% | 2306 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,039 psi | 50% | 2293 fps | 98.1% |
| Winchester 748 | <<locked>> | 80% | 49,850 psi | 78% | 2625 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 37,898 psi | 59% | 2467 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,948 psi | 42% | 2316 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,527 psi | 71% | 2556 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 104 powders for .284 Win. loaded with the .284 | 160gr | Barnes MRX BT. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,848 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,848 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .284 Win. with the .284 | 160gr | Barnes MRX BT they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.